Troubleshoots Yusun

Frequently asked questions about Yusun phones, tablets and watches

Answers to frequently asked questions on Yusun devices. Reasons for a hard reset or reset a Yusun, Is it safe to do a hard reset or format in a Yusun?, What data is deleted when performing a hard reset in a Yusun?, What should I do before doing a hard reset?, Can I install Fortnite on my Yusun?, I forgot the PIN code of my Yusun, I forgot unlock pattern, How to make my Yusun faster?, How to update my Yusun? How to backup my Yusun?